The Memo with Code is a file in Fatal Frame: Mask of the Lunar Eclipse that players will obtain upon opening the Engraved Box in Phase 3. While this file may seem incomprehensible at first glance, fans will need to make sense of it in order to solve the intercom puzzle in the Director's Office and continue making progress. Alternatively, players can simply use this guide, which contains full details on the solution to Fatal Frame: Mask of the Lunar Eclipse's Memo with Code puzzle.
Fatal Frame: Mask of the Lunar Eclipse - Director's Office Intercom Puzzle Solution
To solve the Memo with Code puzzle, players should begin by focusing on the file's red text, which reads as follows: Twice seven days makes the new moon full, plus one is the key to the square as well. This text suggests that fans of Fatal Frame games should multiply seven by two and then add one, and indeed the number 15 plays a very important role in this puzzle.
More specifically, each row of numbers that is displayed on the intercom in the Director's Office adds up to 15, and the digits that players enter into the third row must make it so that all three columns also equal 15 when added. This means that the solution to the puzzle is 276, and a notification will indicate that something has moved behind the bookcase as soon as it has been entered. When that occurs, fans of survival horror games are free to interact with the relevant bookcase twice and proceed into the B2F Laboratory.
That said, players may want to spend some time tracking down collectibles within the Director's Office before they leave it. Indeed, Director Haibara's Notes (1) and some Blue Spirit Stones can be found on the bookshelves in this room, and fans of games with female protagonists that are going for 100% completion should not miss them. There is also a Hozuki Doll in a box on one of the bookshelf's bottom shelves, which players should take a moment to photograph.
With respect to what players will find when they do ultimately move into the B2F Laboratory, it is home to a ghost battl e during which fans can secure an entry for the Ghost list. To get this entry, players must photograph this Fatal Frame hostile ghost when it blooms, and indeed it is quite easy to miss. Fans can also pick up some Blue Spirit Stones and the Moonlight Syndrome Research File in this room before continuing down the stairs and completing Phase 3.
Fatal Frame: Mask of the Lunar Eclipse is available for PC, PS4, PS5, Switch, Xbox One, and Xbox Series X/S.